Tool

Critical loads builder

Pick 5 things you refuse to lose during an outage. We'll show you how much battery or generator that actually needs. No login, no email, no sales pitch.

  • See your must-run vs nice-to-have wattage side by side.
  • Rough battery runtime estimate updates as you pick items.
  • Copy your priority list and bring it to any installer meeting.

Want the full comparison? Battery vs generator tool uses these same priorities plus outage patterns and home constraints.

Tap once for must stay on, tap again for nice to have, tap a third time to remove. The running total updates live.

Must-have (safety)

Comfort

Convenience

Heavy loads (use sparingly)

Your backup load
Live total as you pick items. Based on rough wattage averages.

380

Must-run watts

500

Nice-to-have watts

Rough battery runtime (one 13.5 kWh unit)

Must-run only~36 hrs (1+ day)
Everything selected~15 hours

Assumes continuous draw. Real usage varies (fridges cycle on/off, etc). Rough estimate only.

Selected (4)

Refrigeratormust
Lights (essential)must
Wi-Fi / routermust
Heating systemnice